Stove.



J. C. ZIEGLER.

STOVE.

APPLICATION FILED MAB.. 30, 1914.

Patented Sept. 15, 1914.

GEMM-mg HL' Nnlems FEE/es cu., PHOTO-111Mo., WASHINGTON, u. C.

. stove to utilize the heat both for ,to utilize artificial or p JOHN C.ZIEGLER, 0F WECHITA FALLS, TEXAS.

srovn Specicaton c1 Letters Patent.

Application led March 30, 191e.

Patented Sept. l5, 19ML. semi no. 828,243. i

To all/whom 'it may concern:

Be it known that LJor-IN C. ZInGLnR, a citizen of the United States, anda resident of llVichita Falls, in the county of -Wichita and State ofTexas, have inventeduan Improvement in Stoves, of which the following isa specification.

This invention relates to stoves, and more particularly to animprovement in gas heating stoves.

. One of the principal objects of the invention is to provide a heatingstove adapted natural gas to equal advantage, the construction andarrangement of parts being such that a thorough combustion of thegas isassured and mum utility of the heat units is attained.

.another object of the invention is to provide `a stove having `meansfor suiiiciently retarding the passage :of heat through the purposes ofradiation and for heating the air used in combustion of the gaseousfuel, previously to the contact of the air with the burner.

A further object of the invention is to provide an improved stove of theclass described, which will be simple, durable, elflcient in operationand inexpensive to manufacture.

4With these and other objects in view which will become apparent as thedescription proceeds, the invention resides in the construction,combination and arrangement of parts hereinafter more fully describedand claimed, and illustrated in the accompanying `drawing in which likecharacters of reference indicate like parts throughout the severalfigures, of which- Figure l represents a vertical sectional view takencentrally through the stove, Fig. 2 represents a horizontal sectionalview on the plane indicated by the line 2 2 of Fig.

l, Fig. 3 represents a similar View taken on the plane indicated by theline 3 3 of Fig. l, and Fig. 4 represents a vertical sectional Viewtaken through the burner on the line 4-ll of Fig. 2.

` Referring more particularly to the drawing, the stove comprises acylindrical body 5 supported by a base 6, which is in turn supportedbylegs 7, said base having an annular portion 8 forming the bottom ofthe stove; and an inner casing or air tube 9 disposed within `the body 5and spaced on all sides equally' from the walls thereof and disposed atits lower end within a circular yopening cut centrally of the base 6.Said base is provided with a pair of concentric upstanding flanges l0and ll respectively, the lower end of the body 5 embracing the former onits outeredge and heilig secured thereto in any desirable manner, thelatter fiange encircling the lower portion of airv tube 9 and beingsecured to said tube.

i removable cover l2 is positioned upon the upper end of body 5, saidcover being provided with an encircling flange 13 disposed above thelower edge la ofthe cover, between which flange and edge the upper endof the body is disposed whereby the cover is kept in position on thebody. Surrounding air tube 9, and secured thereto in spaced relationfrom the bottom 8, is an annular ring or dislr l5, which forms apartition dividing the `stove into an upper and lower chamber, and Brespectivel The tube 9 extends nearly to the top of the body portion ofthe stove, and upon the upper end of the tube rests an annular burner 16connected by a plurality of hollow arms 17 with a feed pipe 1S which isdisposed centrally within tube `9 `and at its lower end connects, bymeans of an elbow 19, with a second pipe 20 projecting at one ondthrough an opening in the base 6 of the stove, and adapted to receive atits outer end 2l suitable form of mixer, not shown. The burner is of adiameter greater than the diameter of tube 9 and somewhat less than thediameter' of the body portion and substantially overhangs said tube onall sides, andthe burner is formed in crosssection as shown in Fig. e,having upper walls 22 and .23 disposed substantially at right` angles toeach other, the wall 22 being somewhat less in width than the wall 23,andv forming the outer wall of the burner, and said walls are connectedby a substantially U-shaped bottom 24, openings 25 boing provided in thewalls through which the gas may pass to be burned.

A draft pipe or flue 26 is secured at its lower end to the body of thestove and communicates with the lower chamber B through anV opening 27cut therein, and communicates with the upper chamber A at a point levelwith the burner 16', through a sleeve 28 having a damper 30 positionedtherein. The body 5 opposite sleeve 28 is provided with an opening 3ladapted to be normally closed by a door 32.

The operation of my stove may be briefly described as follows: Thegashaving been turned on from the reservoir, may be '1gnite'd at theburner 16 through the 4door opening 81, and the damper turned so as tolieparallel with the axis of sleeve 28, thus creating a draft of airupwardly through the tube 9, through the openings 33 which occur betweenthe several arms 17 of the burner,.directly across said burner, throughthe sleeve 28, and up the pipe 26. rl`he damper will be left open untilthe pipe has 'been sufficiently heated to expel the cold air therein,whereupon vthe damper will be turned crosswis'e of its sleeve, by whichaction the current of air coming up through the air tube will be drawnacross the burner 16 and downwardly through the chamber A,

and will strike the partition 15, and pass through a number of openings34 cut therein on the opposite side of the stove from pipe 26, into thelower chamber B, and will be drawn off through the pipe 26.

The heat created within the stove, will raise the air pipe 9 to a hightemperature,

around the burner and mingling thusheating the air as it passes upwardlytherethrough, and in turn heating the feed pipe'lS to a hightemperature, so that the air'and gas contained within the feed pipe whenreaching the burner will be in `the most favorable condition to supportcombustion` y It is a well known fact that lin order to attain perfectcombustion, there must be one part, by weight, of carbon, and

twov parts of'oxygen, which mixture is carbomc acid. 1f then anmsuflicient quantlty gef air is introduced, the combustion will not becomplete and the resultant gas is car bonic oxid, composed of one partcarbon and one part oxygen.

The gas passing through the mixing tube lto the burner does not mix witha suiiicient amount of air contained in the tube to produce completecombustion; however, since ih c contents of the tube are so thoroughlyheatedthey become as completely mixedas possible, and in this state themixture' is delivered at the burner underlthe most favorable condition ffor complete combustion. The gas, however, is not completely consinned,andif no further mixture of oxygen were possible, it would pass offunconsumed, but at this point additional air, heated to a veryhightemperature within the air tube 9, isy introduced to the combustionchamber with the unconsumedl carbon Y produces secondary combustion. Inother words, the carbonio oxid, by the introduction of kadditionalheated air or oxygen, is transformed into carbonio acid, resulting incomplete coinbustion.

One of the advantages accruing to my i stove, worthy of specialnotice,-is that after the, burner has been hee-ted, no @01d air whatevercan be introduced within the comopposite side bustion chamber, whichwould tend to reduce the temperature.,witliin the stove, and thuseffectually defeat the very end sought to be attained by hisinventiom-but the only air admitted is heated to a high temperaturebefore gaining entrance.

rEhe current of heat after leaving the burner will be retarded by reasonof the flue opening being at the bottom -of the stove, and also byreason of the partition 15, to such an extent, as toallow a great amountof the heat being absorbed by the body of the stove and' radiated intothe room, the course ofthe heat being downward around the tube on allsides, until itstrikes the `partition-15 where it will circulate untilit may pass through `openings l 33' where l it will strike against thebottom 8 of the stove, and

also against the lower portion of tube 9, be-

fore being carried olf at the draft pipe 26,.

The' openings 33 have pipe, but if so any point around the partition 15,or all around the same.

Although l have described the preferred *t embodiment of my invention, Imay desire to make such changes in the construction, combination andarrangement of parts as do not depart from the spirit off the inventionand the "scope of the appended claims.

l claim:

y been placed on the of the stove from kthejdlraft i desiredthe'y may beplaced at n 1. A, stove having" a khollow cylindrical Y,

body, an air tube disposed concentrically' with the body and spacedequally. onall sides therethrough, base having an annular flat portionVforming the bottom of `the stove, upstanding flanges provided on saidtube being secured to said flanges, said tube extending through anopening in said base, a burner disposed upon the upper end of said tube,said. burner overhanging the tube -on all sides, a-feed` pipe disposedaxially within said tube, a plurality ofhollow arms connecting said feedpipe to said burner, a cover on said body portiomsaid body portionhaving an opening ,therein in alinement with said burner, a .door fornormally closing said opening, an annular ring secured within said bodyportion at the lower end thereof and in spaced relation to the body,

t base, the lower end of said body portion and said ring disposedbetweenfthe body portion and air tube, and forming `a partition to di-4vide the stove into upper and lower compartments, said ring `havingseries ofopenings in oneside thereof, adraft pipe connected to said bodyyand openingfi'nto the lower chamber below thev partition and on theopposite side ofthe stoveffrom the open ings in said ring, a hollowsleeve connecting the upper portion of the body with the draft pipe inalineinent with` said burner, anda Y,

damper positioned the sleeve., 2. A stove comprising a hollow cylindriilower chamber,

`said burner and a dra-ft pipe connected to said body portion `tricallywith cal body, an air tube disposed axially within said body and spacedequally therefrom, on all sides, a leg supported base, said base havingan annular flat portion to which said body and tube are secured forforming the bottom of `the stove, said tube extending through said' baseand opening into the outside atmosphere, a burner disposed upon saidtube and overhanging the same on all sides within the body, a feed pipeconnectin" said burner with a source of supply,

hollow arms connecting said burner with i said feed pipe,

a top on said body, a parti tion disposed within the body and formingthe saine into an upper and lower chamber, partition having aseries ofopenings connected to said stove and opening into the means for allowinga draft between the upper chamber and the draft pipe, and meansforregulating saiddraft.

A stove comprising a base having an annular flat portion, a hollowcylindrical body disposed on said flat portion, an air tube disposedwithin said body and extending through said flat portion and securedthereto, a burner disposed on said airutube within the body, a feed pipeconnected with disposed within said tube,

at the lower end thereof and adapted Vto create a downward draft aroundthetube, means disposed within the body portion for retarding saiddownward draft,and means for creating a direct draft between lthe bodyand the draft pipe and means for` regulating said last draft.

4. A stove providing a combustion chamber, a stove body surrounding thecombustion chamber, an air tube disposed. concenthe body and forming theinner wall of the combustion chamber, a burner disposed on the airtubewithin the chamber, a feed pipe disposed within the air tube andconnected at one end to said burnerand at the opposite end to the fuelsupply, a leg supported base having a central opening, means forsecuring the air tube to the base at the central opening and forsecuring the body to the base near the periphery of the latter, saidbase forming a closure for the lower end of the combustion chamber, atop disposed on the stove body and forming a closure for the upper endof said chamber, said body, base, top and air tube adapted incombination to prevent ingress of air into the combustion chamber at anypoint except through the central opening and air tube, a draft pipecommunicating with the lower end of the combustion chamber adapted tocreate a down draft therethrough, means for establishing a direct draftbetween the upper end of said chamber and the draft pipe, means forregulating'last said draft, a ring disposed with* in the chamber betweensaid body and air tube and above the connecting point of the draft pipeand lower end of the chamber and forming a partition dividing thechamber into two compartments, said ring having openings therein on theopposite side of the stove from the draft pipe, said ring adapted toretard the down draft and direct the same to said opposite side of thestove and through the openings against the stove bottom, means forpreheating all the air used to support combustion before admission tothe combustion chamber, and means for preventing the introduction ofcold air at any point subsequently to the ignition of the burner.

Joint o. amenait.

Vitnesses:

J. R. ZIEGLER, J. E. LEE.

Copies of this patent may be obtained for `rive cents each, byaddressing the Commissioner of Patents, Washington, D. C.

